Mortise lock



8. SEGAL MORTISE LOCK Nov. 10 1925' Filed April 7, 1921 2 Sheets-Shut 1 Nbv. 10, 1925- Patented 16, 19 25.

" UNITED. S TE P TE TT oFI-ICE.

smum. sEGAL', or NEW YORK, -11. YL. AssIoNon T0 sneer. METAL raonucrs com PANY, me, or 'NEW YORK, N. Y., A coarom'rron or DmAwAn-E.

I MORTISE LOOK.

I Application filed April 7 1921. Serial No. 459 257;

To all whom it may coace'm: Be it known that I, SAMUEL SEGAL, a c1t1- ten of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain .new and useful Im rovements in Mortise Locks, ofwhich the ollowing is a specification.

My inventionrelates to looks, preferably of the mortise type, and has for its object the production of'a'lock of strength and simplicity of construction which may be ap# plied to 'a' door or other closure and which shall be adaptedto effectively-resist efforts against an unauthorized opening of the door by means'of jimmying the lock or by force applied in any direction.

A further object of-the' invention is the production of a lock provided with a spring latch bolt of novel construction and with a locking bolt associated therewith and adapted to move in a plane transverse to the :plane of the/movement of; the latch bolt and to interlock with a suitable keeper.

A.'stillfurtherifobject of the invention is the production of-a lock of the character above referredto Whichshall have suitable means adapted'to actuate the locking bolt independently of the latch bolt.

Other and furtherobje'cts and advantages of the invention will appear frOm the accompanying description, the invention con-' sisting-in the noveL-parts and combinations of the same'hereinafter more-particularly eclaims.

In the accompanying drawings showing a practical embodiment of the invention Fig. 1 is a section taken through a door and door rame with-my invention applied thereto showing the rear wall of the lock casing removed and illustrating the position of the parts of the lock when in locked position.

Fig. 2 is a view similar to Fig. 1 but show}. ing theparts in retracted or unlocked positlOIl. Fig. 3 is a vertical cross-section on the line 3-3 of Fig. 1.

Fig. 4 is a horizontal section on the line 4,4 of Fig. 1. t

Fig. 5 is a front elevation of the keeper. Fig. 6 is a horizontalsection on the line 6 6 of Fig. 5.

Referring in detail to the drawings: a 1 indicates a door which is preferably of the swinging type and Z-indicates the door.

the cylinder'lO and'it' carries an frame. .A look casin enclosin with a front wall 4 and a. rear wall or cover 5 which is removable. Said rear wall may be detachably fastened to the-casing by means of su table screws 6 screwed within posts 7 which are secured to the front wall 4. The said casing ,is preferably mortised in the door 1 intermediate the front and rear faces thereof as shown in. Fi s. 3 and 4 and it is provided'with a remova le end wall or plate 8 which is preferably mortised in the door and is flush with the side or edge thereof and which is 7 fastened thereto by suitable screws 9.

10 indicates the cylinder of a conventional pin tumbler lock which cylinder carries the usual escutcheon plate 11 ,on the f0ward end thereof engaging the front face or side of the door. The said cylinder extends through a suitable cylindrical opening in the front wall 4 of the casing and it is held in position b means of screws 12 extending-- through a p ate 13 on therear side of the door,'through an opening within the emovable cover 5 and threading through cars 14 which are preferably cast as an integral part of cylinder 10. To more effectively hold the cylinder against rotation and'in proper positionlhave provided an elongated screw-15 passing through the end plate 8 of the casengaging a groove 17 with which the cylinder 10 is provided. A spindle 18 is connected to the usual key plug (not shown) of & actuating arm or dog19. -Said spindle extendsrearwardly through said casing and is operatively connected withthe shank of-an operating knob 20 whicl1' is mounted on the plate 13. As is therefore obvious, the actuating arm or, dog 19 maybe rotated either by means of a key inserted in) the key turningthe: operatingl'lmob 20 within thedoor- I f 21 indicates a latch bolt which isipro- .vided with a groove 22 therein as well as with a transverse slot 23. The saidopening 24-c0mml1nicateswith no.

the lock mechanism is indicate at 3 and is provided plug-of the cylinder 10 from without the door or by 23-extending therethe groove 22 and has slidably mounted therein a vertically operating locking bolt movable in a plane transverse to the plane of the movement of the latch bolt and provided with a lower beveled end as illustrated. .Said locking bolt 25 is concealed from view by said latch bolt when in normal or unlocked position, and is supported Extending within the lock casing-is a shank 27 provided with a slot 28 therein within which is pivoted, as at 29, a locking bolt actuating lever 30 )rovided with a slot 31. The'forward end 0 said actuating lever 30 enters the groove 22 in the latch bolt 21 and it is provided with an opening 32 receiving a ball 33'secured to the locking bolt 25 by an arm 34 extending through the communicating slot in the latch bolt intermediate the opening 24 and groove 22. The connectionbetween the actuating lever 30 and locking bolt 25 is thus the well known ball and socket connection as has been described. flhe rear end of the shank 27 of the latch bolt'is provided with a flange or reinforcing member 35 adapted to abut against a side wall of the lock casing when said latch bolt is in retracted position, said side wall acting as a stopto limit the move ment of the latch bolt within the casing. Said shank is also provided with an open ing 36 extending therethrough and'with a squared indentation 37 in the upper side thereof. The said shank slidably rests on a support 38 secured to'the front wall 4 of the casing and it is guided in .its movement within saidcasing by guides 39 and 40 fast- .ened to the front wall 4 andrear wall 5 respectively. The said support 38 is'also adapted to engage the flange 35 of the shank 27and it acts as a stop to limit the forward movement of the latch bolt in the casing. i

The lower end of the latch bolt 34 is provided with an elongated portion 41 constituting the base of said latch bolt and which is provided with outer beveled or inclined edges 42 as illustrated. The latch bolt is supported within a slot43 in the end wall or plate 8 of the casing, said slot being elongated at its lower end and of a configuration .and size permitting it to receive the base 41. The front wall 4 and rear vwall or cover 5 of thecasing are provided with housings 44 and 45 respectively open on their inner sides andregistering with the elongated portion of the slot 43, said housings being adapted to receive and support .rear walls thereof.

plate intermediate said lugs.

the ends of base 41 of the latch bolt a-nd to guide said latch bolt in its movement within the lock casing.

46 indicates a plate pivotally mounted on a pin 47 extending transversely through the lock casing and supported by the front and Said plate is provided with a pin 48 extending through the slot 31 of the lever 30 and said plate is supported by a rib 49 secured to the front wall 4 of the lock casing. 50, 50 indicate lugs on said plate 46 having outer inclined curved or beveled surfaces and 51 is a slot in said A tumbler pawlis indicated at 52 and is pivoted as at 53 to said plate 46. Said tumbler pawl is provided with an inwardly projecting arm 54 extending within the slot 51 and provided with a reduced end 55 adapted to engagea post orlug 56 on the front wall 4 of the casing. A spring 57 is carried by the pivot 53 and one end thereof engages a pin on said tumbler pawl while the other end engages a pin 59 on the plate 46. The

action of said spring 57 tends to swing the provided with wings or arms rotatable therewith and adapted to engage lugs 66 on the legs of a forked member 67. Said'forked member is provided with a pin 68 and the ends of the arms of said member are adapted to engage posts 69 fastened to the end wall of the lock casing, which posts act as stops to limit the movement of the forked member and which also act as rests or supports for the cover plate 5-.

70 indicates a lever pivoted as at 71 to the front wall 4 of the lock'casing. Said lever is provided with an upper knobbed end 72 entering the opening 36 in the shank of the latch bolt and with a slot 73 receiving the pin 68 of the forked member 67. 74 in- "plate 46 on its pivot 47 in a counter-clockw a size andco tends to force the forked member 67 to the left and to maintain contact between the wings and the lugs- 66 of the forked member.

76 indicates the ,rear -wall, 77 the side walls and 78-the front wall or. plate of a keeper housingwhich is mortised in the door casing 2 and which is screwed thereto by screws 79 passing through therear wall and front wall of said housing as indicated in Fig. 1. The front wall 78 of said keeper housing is provided with an I-sha (1 slot the horizontal ortions 80 of whic are of guration adaptin receive the base 41 of the latch bolt while the vertical portion of said slot is adapted to receive the main or body ortion of said latch bolt. The front wall 8 is provided with a striker'plate 81 adapted to be engaged by ,the latch bolt as will be hereinafter described. The said slot 80 is of the' configuration described and illustrated so as to permit the position of the housing to be reversed from that shown, the position in which it is mounted depending on whether the door to which the lock is applied is swung inwardly or outw ardly it being de-- sirable to have the housing so positloned' that the striker plate thereof will first con swung closed. -As isobvious, the slot 80 and one of the horizontal portions ,80' thereof will always receive the latch bolt and its, base respectively regardless of whether the keeper housing is mounted inthe position shown or whether it is mounted in'reverse position, that is, turned through'an angle of 180and then mounted.

The rear wall 'of the keeper-housing provided with an annular opening 82 receiving a cylindrical rod 83 having a flange 84 at its rear end, Said rod is of a size some-,- what'sinaller than that of the opening 82 V rmit a slight movement of said rod in sai opening in any direction. "A keeper plate or ear 1s indicated at 85 and said late 1S referabl integral. with .said ro 83. Sai plate'is p'rovided with shoulders 86 adapted to engage thearear wall of the \keeper housing, the rod 83 being of a length topermit a'slight forward and rearward movement ofsaid plate 85 which movement is limited by the flange 84 and shou1ders86 striking or abutting against the rear wall 87 indicates a 76 of the keeperhousing, cylindrical opening extending through said plate, the plate being beveled adjacent the .edge'of said opening as indicated at 88 and at its outer edges as indicated at 89. When the latch bolt enters-the slot. 80 the late 85 isrecei-ved by the slot 23 'in' said atch bolt withthe opening 87 in the plate in vertical alignment with the opening 24 and bore 26 inthelatch bolt; When the locking sagging ofthe door or 'door frame slot. Furthermore, them to the slot 43 in the end tion of one of the springs bolt is in raised or unlocked comes automatically ever, reaches its extreme closed position the the action of the spring 74, thro 80 of the keeperfhousing to hold t e door it bolt 25 is thrown into locked position it'- extends through the opening 87 in said plate and into said bore 26 and accordingly secure- 1y interlocks with said plate. 1 5

In the event of the .lock casing or keeper housing being. thrown out of ali ment with each other due to the warping-bor or ecause of other reasons, the keeper plate 85 will nevertheless enter the slot 23 as one of against an edge of. the latch bolt adjacent said slot thus forcin the locking bolt 25 will always enter the opening 87 1n the keeper plate for the reason that if the plate is out1 offproper alignment the lower beveled en 0 87 to automatically] properly. position said plate as said plate is capable of slight movement in any direction as has been herein before described. 1

The latch bolt'normally extends through. la

due to the ac 74 but it may be'drawn within the casing if the locking position by.

15' the beveled edges 89 thereof will strike the plate within the 1 the locking bolt willfstrike against 'the beveled edge 88 adjacent said opening turning either of the handles 61 or 62 in either direction. .This action rotates the tat with the-,latch bolt when the door. is

hub 64 which'carries the wings or'arms.65

-with it thereby forcing one of said wings to press against one of the lugs 66 to force the forked member 67 from the position shown in Fig. l to that shown in Fig. 2.

Due to the pin and slot connection between a the forked member 67 and the lever 70, said lever is rocked on its pivot 71 in a clock-- wise dii' ehtion and the knobbed end 72 of said lever draws or retractsthe latch 'bolt- I within the'casing'against the action of said being limited bythe engagement of the that the latchbolt strikes against or. engages the striker plate 81 to force thelatch bolt flange- 35 with the su port 38.. When the" door is swung into e osed position-it 'belatched for the reason, I

within "the lock casing whichh is accomplished without afieeting the position of j the forked member 67. When the door, how

latch 'bolt' is automatically projected, by

h the slot closed position until ,either of the handles 61 or 62 has been" rotated andthe door ushed I, open in the'manner previously descri ed.

The vertically operating locking bolt 25 may be actuated to cause the same to interlock with; the keeper plate as has beenex- 4 plained either by turning the operating knob 20 or by means of a key inserted in the key plug of the cylinder whereby a -ro-' tation o the actuating arm or dog 19 is effected. When the locking bolt is in projected or locked positionit is that position shown in Fig. l and it is held in locked position by enga ement of the reduced end 55 of the arm wit the left-hand side of the post or lug 56 which prevents the plate 46 latch bolt which prevents said latch bolt from being drawn inwardly within the casing by a turning of the handles 61 or 62.

To retra'ct said locking bolt or draw it upwardly into unlocked position the actuating arm or dog 19 is rotated in a counterclockwise direction to cause the end thereof to engage and press against the arm 54 and cause the tumbler pawl 52 to swing downwardly on itspivot 53. against the action of the spring 57. Further movement of the arm 19 causes the end thereof to engage and press against 'the lugs 50' on the plate46 which rocks said plate on its pivot'47 in a clockwise direction thereby rocking the actuating lever 30 on its pivot29 due tothe pin and slot connection. between said plate and actuating lever. The movements just described raise the locking bolt in an obvious manner and after the' arm or dog 19 has cleared the arm 54 the tumbler pawl swings upwardly on its pivot by the action of spring 57 and the reduced end 55 of the arm- 54 engages the post '56 on the right-hand side thereof, thereby preventing the plate 46 from swinging-on its pivot and holding the. lockin bolt in raised and unlocked position. See Fig. 2.)-

To throw the locking bolt downwardly into locked position the actuating arm or dog 19 is rotated in a clockwise direction. The end thereof first engages the arm 54 of tumbler pawl 52 pressing said arm downwardly to release theredueed end 55 thereof from engagement with the right-hand side of post 56. Further movement of said arm or dog causes the same to press against the lug 50 on plate 46 and said plate is swung in a counter-clockwise direction on its pivot 47 to throw the locking bolt into locked position in an obvious manner. The spring 57 swings the tumbler awl 52 upwardly on its pivot and the re uced end of the arm 54 again engages the left-hand side of thepost 56 tohold the lockingbolt in locked position. It will be manifest from the foregging description that the locking bolt maiv actuated lndependentlyof the latch'bo t 'and irrespective of the position of said latch bolt. What I claim as my invention is: 1. In a door lock, a keeper, a latch bolt mounted on the door. and provided with a slot and an opening therein and adapted to enter said keeper and a. locking bolt mounted in said opening and extending across said slot when in locked position.

2. In adoorlock, a keeper, a latch bolt mounted on the door and provided with a slot and a bore therein and adapted to entersaid keeper and a locking bolt slidably mounted within said bore,said locking bolt being concealed by said latch bolt when in unlocked position and extending across said slot with both ends supported within said bore when in locked position.

3. In a door look, a keeper,-a latch-bolt mounted on the door and adapted to enter said keeper, a locking boltv carried by said latch-bolt and means associated with said keeper for interlocking with said locking bolt and provided with an opening adapted to receive said locking bolt therein.

4. In a door lock, a keeper, a latch-bolt mounted on the door and having a slot therein and adapted to enter said keeper, a locking bolt-carried by said latch-bolt and movable in a plane transverse to the direction. of movement of said latch-bolt and means associated with said keeper and adapted to enter said slot and to receive said locking bolt for interlocking therewith.

5. In a door lock, a keeper, a latch-bolt mounted on the door and adapted to enter said keeper, a locking bolt carried by said latch bolt and adapted to interlock with said keeper, means for actuating said looking bolt independently of said latch bolt and means engaging said locking bolt and adapted to interlock with [said latch bolt for preventing movement of said latch bolt when said locking bolt is in locked position.

'6. In a door look, a. keeper, a latch bolt mounted on the door and adapted to enter said keeper, means for actuating said latch bolt, a locking bolt carried by said latchbolt, means connected to said latch bolt for actuating said locking bolt and means forming a part of said lock and adapted to en gage said latch bolt to prevent actuation thereof by said latch bolt actuating means.

7. In a door look, a keeper, a latch bolt mounted on the door and provided with a slot therein and adapted to enter said keeper, a plate associated with said keeper and adapted to enter said bolt and a locking bolt adapted to interlock with said plate.

8. A look, including, in combination, a keeper, a bolt comprising 'a pair of parts .movable one to each side of said kee er.

means carried b said bolt and extensible throughan opening in said keeper, and op erating means for said bolt and said lastname'd means.

i 9. A lock, including, in combination, a keeper, a bolt comprising a pair of parts movable one to each side of said keeper,

- operating me'ansfor said bolt and saidlastnamed means. v

10, In a door lock, a keeper housing, a spring latch bolt mounted on the-door and adapted to be automatically projected in said keeper housing when the door is closed, a' locking. bolt carried by said latch bolt, means within said kee r housing for inter-' ocking with said 100 ing-bolt, means for locked-position.

actuating said locking bolt independently of isaid latch bolt and means engaging said locking bolt and adapted to interlock with said latch bolt for preventing movement of said latch bolt when said 100 g bolt is in 1 11. "In a door lock, a keeper, a movable plate-supported a wall thereof and provided with 'an opening therein, a locking bolt movabletowards and away from sald keeper, and means having a beveled end mountedlon the door and adapted to extend throughthe opening in said'plat'e.

tend through the opening in said plate.

-keeper, a movable platejforming, a part I 12. Ina door look, akeeper, a movable plate extending through an opening in a wall thereof and provided with an opening therein and with means adapted to, engage said wall to limit themovement of said plateiia bolt movable towards and away from said and movabletran'sversely of the direction of eeper, and means carried by said bolt movement of the sameand adapted to ex- 13. A lock, including, in combination, 9:

thereof and provided .with an opening, a

bolt, and means, for projecting and retract-. ing. said .bolt' through said plate opening,

said. plate being movable either side of said bolt.-.

in a' direction to 14. In a door lock,a'keeper,' a latch bolt mounted on 'thejdoor 'and adapted to enter 'said'keeper, a locln'ng'bott carried by" said ilatch bolt andnormally concealedfthereby fand ai-plate within said keeper having an.

opening for receiving said locking bolt. .;;w1 5.-,,In a door look, a keeper, 'a latch bolt mounted on the door and provided with a slot therein and a locking bolt slidably 4 mounted withinjsaid'latch bolt, said locking bolt extending 'acrossy'sald slot when in {locked position. with bothcnds thereof concealed and supported'bysaid latch bolt;

'16. In a door; lock,*'a kee 'er, a latchbolt mounted -on-.'-the 'doo'r an having a slot therein said latch bolt being adapted to extend within said keeper,-'means withimsaid kee er adapted to extend within said slot and a locking bolt carried by said latch bolt and adapted to extend across said slot" and to interlock with said means'within said keep r.

.1 1-7. -In a doorlock, a keeper, a movable adapted to extend within said slot and a lock- I in a plane transverse to the direction of movement of said latch bolt and adapted to extend across said slot and through-said ing bolt carried by said latch bolt and mov-' ab e means within said keeper and to interlock. a

therewith. p 18. In a door look, a keeper, a movable latch bolt provided with a base having in clined sides, said latch bolt being adapted to be projected within said keeper whenthe door 1s closed upon engagement of said .ing bolt carried by said 'latch bolt and adapted to interlock with {said keeper. 19. In a. door look, a keeper,- a movable latch boltadapted to enter said keeper and provided with'a slot extending transversely.

therethrough and with an opening therein means within said keeper adapted to extend within said slot and a locking bolt slidably mounted within said ope'nin' and adapted .to move across said slot an through the means in said keeper and to' interlock, there- W t I Y- 20. In a door lo'ck, a keeper, a lock easing mounted ori said door and provided with a-slot therein, a movable latch-bolt includin a body adapted to enter said keeper an bolt carried by said latc'lr bolt and movable within a locking bolt being adapted to interlock with said keeper.

21. Inadoor lock, a keeperfa lock casing mounted'onsaid door and" rovided with a.

. inclined sides with said keeper and a lock- I extensib1ethrou'g ;said slot andalocking the space. defined by its body, said .slot therein, a latch bolt s 'dably mountedin said casing and-extensible through saidslot and adapted'to enter said keeper and'a.

*lockinglboltincluding "a body. carried by said latch bolt and movable within the space defined by said ,body and in a plane transverse @to the direction of movement of bolt beingsaidlatch bolt, said locking adapted 'to interlock with sai keeper.

mounted on said. door and'provided with. a

'slot extending "transverse therethrough,

22. In a door lock, akeeper, a lock casing 120 said latch bolt. beingsslida 1y mounted in said casing and normally extending thr ugh the, slot in said casin means carried by snd;

keeper adapted to. enter the slot in said latch bolt and 'a locking bolt carried by said latch bolt and adapte to move across; the slot f .inthe latch bolt andto extend through the means in said keeper and to. interlock therewith.

1 a lock, a'keeper, a lock mounted on said door and provided with a slot therein, a latch bolt movable through said slot and adapted to enter said keeper a locking bolt carried by said latch bolt an adapted to interlock with said keeper, a plate pivotally mounted in said casing, a lever pivoted to said latch bolt and connected to said locking bolt and said plate, a tumbler pawl pivotally mounted on said plate, means in said casing engaging said tumbler pawl to retain said locking bolt in projected or retracted position, an actuating arm for releasing said tumbler pawl from engagement with said means and for rocking said plate on its pivot to actuate said locking boltand means 0 erable frpm within or without the doo or actuating saidlatch bolt.

24.. In a door lock, a keeper, a lock casing mounted on said door and provided with a slot therein, a latch bolt slidably mounted in said casing and movable through said slot and adapted to enter said keeper, a. locking bolt carried by said latch bolt and adapted to interlock with said keeper, a plate pivotally mounted in said casing and provided with means adapted..to engage said latch bolt to prevent movement thereof, a locking.

bolt lever pivoted. to said latchibolt and connected'to said locking bolt and said plate, a'

tumbler awl pivotally mounted on said plate, a ug on'said casin engagin ."said tumbler awl to retain sai lockilzgfiilvinprojecte or retractedposit'on, m nsacting same on its pivot to actuate said latch bolt and operable from within or without the oor..

25. A lock including in combination a bolt, means for moving said bolt, a bar carried by said bolt and ada ted for movement in a direction substantia y' transverse to the direction of movement of said bolt, unitary means for moving said bolt-moving means and said bar, and an apertured kee er having a seat for thereception of said It and another seat for the reception of said bar iaid bolt and bar-interlocking within said eeper.

26. A lock including in combination two movable members one carried by the other and adapted for movement in substantially transverse directions respectively, one of said movable members be1n provided with a seat for the reception of t e other of said for simultaneously movin retraction of the former.

28. In a lock structure, the combination with a lock casing and a keeper, of a main bolt structure including a plurality of members to enter the keeper,' a vertically movable auxiliary bolt structure carried by the main bolt structure and including a member to project from oneof said main bolt members and ada ted to interlock with an adjacent main b0 t member and with the keeper.

said slot, said. means being projectible across said slot and through an, opening 1n said keeper to prevent a retraction of said bolt. 30. A lock, including a keeper formed with an. opening, a bolt formed with a slot, means for projectin said bolt to cause said kee er to enter sai slot, means carried by sai bolt and in-xone position to one side of said slot, said means being projectible across said slot andthrough an opening in said keeper and into a recess formed in the slot face of said bolt-to prevent aretraction of the latter. v

, 31. A look, including, in combination, two movable members adapted for movement in substantially transverse directions respectively, one of said movable members being adapted to enga c with the other of the same, and means orming a part of the lock both of said members while retaining t e same against movement with respect to each other, and thereafter moving said members into engaging position; I

32. A look, including, in combination, a bolt and a bar, said bar bein adapted to be engaged by said bolt, means or moving said bar and bolt in unison while maintaining. the same against movement with respect to each other, and thereafter moving said bar and bolt relatively to and into enga ement with each other, and an apertured eeper having seats for "the reoeptlon of said bolt and bar.

33. A lock, including, in combination, a

pair of members movable transversely of and into engagement with each other, means for moving both of said members while maintaining the same against movement with respect to each other, and means for seats, one adapted to receive each of said members. H a I Signed at New York in ,the county of 10 New York and State of New York this 6th day of April, A. D. 1921.

SAMUEL SEGAIJ. 

